Passenger target image and background separating method using photoelectric auxiliary device

The invention relates to a method for separating a passenger target image and a background by utilizing a photoelectric auxiliary device. The method comprises the following steps: digital images and detecting signals of a photoelectric sensor are received; data of a passenger information state is processed by the photoelectric sensor; whether the processing is successful or not is detected, if the processing is successful, primary region segmentation is performed; whether the segmentation is successful or not is detected, if the segmentation is successful, the separation of the passenger target image and the background is performed, and the initiative step is returned. Compared with the prior art, the invention better solves the problem of separating the passenger target image and the background under the complex conditions that behaviors and gestures of human bodies getting on or off buses are various, and the like.